Trap.



l TRAP. APPLICATION FILED JAN. 16, 1909.

Patented Sept. 21, 1909.

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HENRY C. FOLGER, OF MEDFORD, MASSACHUSETTS, ASSIGNOR TO ACME MANUFAC-TURING COMPANY, OF BANGOR, MAINE, A CORPORATION OF MAINE.

TRAP.

Specification of Letters Patent.

Patented Sept. 21, 1909.

Application filed January 16, 1909. Serial No. 472,597.

To all whom 'it may concern: l

Be it known that I, HENRY C. FoLGnR, a citizen of the United States ofAmerica, and a resident of Medford, in the county of Middlesex and Stateof Massachusetts, have in vented certain new and useful Improvements inTraps, of which the following is a specification.

rIhis invention relates to traps and has for its particular object theproduction of a trap adapted for use beneath a pair of set tubs wherebythe same trap may be used for each.

The invention consists in certain novel features of construction andarrangement of parts which will be readily understood by reference tothe description of the drawings and to the claims hereinafter given.

Of the drawings: Figure 1 represents a vertical section of a trapembodying the features of this invent-ion shown as applied to the bottomof a pair of set tubs, and Fig. 2 represents a transverse verticalsection on line 2 2 on Fig. 1 shown removed from said tubs.

Similar characters designate like parts throughout the several figuresof the drawings.

In the drawings, 10 represents a casing in which is formed the mainchamber 11 and the inlet passages 12 communicating with the chamber 11near the bottom thereof as at 13. The upper end of the chamber 11 isclosed at 14 while the lower end has threaded thereto the closing cap 15by the removal of which the trap may be cleaned. The trap is made of anywell-known cast metal and has cut therewith the threaded hub 16 to whichthe waste pipe 17 may be coupled in any well-known manner. On theopposite side of the trap the threaded boss 1S has similarly securedthereto the vent 19 of any suitable construction.

The upper ends of the inlet passages 12 are threaded at 20 and thecasing at this point is provided with an annular flange 21 having a fiatupper surface 22, said'flat surface being slightly above the closed endof the casing 10. A strainer plug 23 is provided with a cylindricalportion 24 having a male thread adapted to co-act with the threads 2()in the mouth of the inlet passage 12. The strainer plug 23 is providedin the usual manner with a stopper 25 and also with a flange 26 theunder face of which is adapted to bear against the upper face of thebot-tom 27 of the set tubs when the cylindrical portion 24 has beenpassed through an opening in said bottom and threaded to the threadedportion of the inlets 12. The face 22 of the casing 10 is adapted tobear against a washer 28 surrounding said tubular portion 24 and bearingagainst the under face of the bottom 27. When the strainer plug 23 hasbeen secured firmly to its seat the flexible washer 28 will becompressed to prevent leakage. A pipe 30 threaded to a boss 31communicates with the main chamber 11 near the bottom thereof and mayextend to the outlet of a sink located in the vicinity of the tubs.

It is obvious that by the use of a trap of this construction a singletrap beneath the partition 29 of the tubs may be utilized for a pair oftubs thereby saving considerable expense in construction and if desiredmay be used for a sink also. By providing a cast metal trap such as isshown with bearing faces 22 the top thereof adapted to bear directlyagainst the under face of the tub bottom there is a great economy inspace and material used in making the connections. Another greatadvantage of a trap of this construction is that the trap is broughtnearer to the tub bottoms thereby making the device more effective inoperation.

It is believed that from the foregoing the operation of the inventionwill be thor oughly understood without any further de scription.

Having claim:

1. In a trap, the combination of a casing provided with three verticalchambers, the outer of which are open at the top and communicate at thebottom with the central chamber which is closed at the top; strainerplugs adapted to co-act with said open ends; and mea-ns for securingsaid plugs to said casing.

2. In a trap, the combination of a casing provided with three parallelvertical chambers made integral, the central of which is closed at thetop and is relatively larger than the outer ones which are open at thetop and communicate with the central chamber at the bottom; an outletpipe communieating with the central chamber near the thus described myinvention, I

top; and strainer plugs threaded to the openends of saidinlet passagesand adapted to secure said trap to the bottom of a tank.

3. In a trap, the combination of a casing provided with a main chamberclosed at the top and inlet passages on either side thereofcommunicating therewith at the bottom, said casing having a i'l-at uppersurface adapted to bear against the under side of the bottom of' a tank;and flanged strainer plugs passing through said bottom adapted tocoperate with said inlet passages to hold said trap in position.

4:. As a new article of manufacture, a east metal trap provided with amain chamber closed at the top and closed by a threaded cap at thebottom, and having two inlet passages outside of said main chambercommunicating therewith at the bottom, said passages being provided withinteriorly threaded mouths; and a tubular strainer plug provided with amale thread to co-act with saidA threaded mouth.

5. As a new article of manu-facture, a cast metal `trap provided with amain chamber cap at the bottom, and having two inlet pasi sages outsideof said main chamber commug nicating` therewith at the bottom, saidpassages being provided with interiorly :threaded mouths; and a tubularstrainer plug provided with a male thread to co-act with said threadedmouth and having a flange adapted to bear upon the upper surj face ofthe tank bottom to which the trap is to be applied.

6. As anew article.l of manu-facture, a trap for set tubs provi-dedlwith a maincham-ber closed at the top and an inlet passage parallelfthereto. for each of twoadjacent tubs; and'e aflangedv strainer plugprovided with a cylindfricafl portion passing through the bottomodi'each of said tubsy andj threaded to said casing in continuation of saidinlet passages.

Signed by me at t Post Otli'ce' Sq., Boston, Mass., this 13thl dayotJan-ufa-ry, 1909.

HENRY C. FOLGER. Witnesses:

EDNA C. CLEVELAND` NATHAN Q. LOMBARD.

